Islamic State fighters posted a video online announcing their presence – threatening to “cut the throats” of Ansarullah Houthi rebels.

It showed about two dozen heavily armed IS fighters preparing for combat. Their commander planted a black flag in the ground saying “soldiers of the caliphate (have arrived to) to cut the throats” of the Houthis.

“We have come to Yemen, with men hungry for your blood to avenge the Sunnis and take back the land they have occupied,” he said.

He urged Yemeni Sunnis to join in battle against Shia Houthis. The video was posted on Friday – after a so-called Green Brigade claimed responsibility for a central Yemen car bombing killing five Houthi fighters.

Earlier attacks killed scores and injured hundreds in a series of suicide bombings at Shia mosques in Sanaa days before Saudi terror-bombing began.

Senior Houthi official Abdel Monem al-Bashiri said “Saudi Arabia has sent about 5,000 terrorists to Yemen and deployed them in the Death Triangle covering an area between Aden, Sanaa and Hadramawt provincies.”

“Saudi officers are there for coordination between terrorists and pro-Hadi forces.”

Yemeni journalist Sari al-Karim said “(t)he presence of Saudi officers in Yemen takes place for Al Saud’s control over the terrorist operation in” Yemen.

Clashes between Ansarullah fighters and imported terrorists continue. Nearly 3,000 Yemenis have been killed, many thousands more wounded – including hundreds of women and children.

So far, no fatalities in their ranks were reported. Russia’s embassy reported Saudi-led phase two terror-bombing targets Houthi technology and manpower.

“They used to bomb all the arms, food and fuel depots they had information on, as well as military camps, and now they are carrying out strikes only on ‘manpower’ and technology in areas of combat operations in the provinces of Aden, Lahij, Abyan, Taiz, Shabwah, Marib, Saada,” Russia’s embassy said.

Terror-bombing so far failed to diminish Houthi strength. What effect IS terrorists will have remains to be seen.

On Saturday, a UN statement announced Ould Cheikh Ahmed’s appointment as its special envoy for Yemen. He replaced Jamal Benomar. He resigned earlier this month.

Houthi official Mohammed Bahiti said Ansarullah fighters “will carry out a military attack on Saudi Arabia if the airstrikes on Yemen don’t come to an end.”

He called ousted/US-installed illegitimate president Abd Rabbuh mansur Hadi a “traitor.”

“The Yemeni people will not honor Mansur Hadi and (won’t) allow him to return to power,” he added.

He expressed Houthi readiness to participate in UN-brokered peace talks from “the point they were at before Saudi aggression.”

Dozens of daily terror-bombings continue. Naval and air blockades remain in force.

An entire population is being suffocated. Obama bears full responsibility.